Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .NET Remoting_CVE-2026-39906

{
    "lastseen": "",
    "description": "Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose a deprecated .NET Remoting TCP channel that allows remote unauthenticated attackers to leak NTLMv2 machine-account hashes by supplying a Windows UNC path as a target file argument through object-unmarshalling techniques. Attackers can capture the leaked NTLMv2 hash and relay it to other hosts to achieve privilege escalation or lateral movement depending on network configuration and patch level.",
    "published": "2026-04-14T21:21:21.739Z",
    "modified": "2026-04-14T21:21:21.739Z",
    "type": "cve",
    "title": "Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .NET Remoting",
    "source": "VulnCheck",
    "references": "https://www.unisys.com/solutions/cai/applications/\nhttps://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-net-remoting",
    "id": "CVE-2026-39906",
    "bulletinFamily": "",
    "cwe": [
        "CWE-441"
    ],
    "cvelist": null,
    "sourceData": "Unisys WebPerfect Image Suite 3.0.3960.22810\nUnisys WebPerfect Image Suite 3.0.3960.22604",
    "sourceHref": "",
    "cvss": {
        "score": 7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "WebPerfect Image Suite",
    "version": "3.0.3960.22810",
    "vendor": "Unisys",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}